ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f

General

Target

ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
Size

378KB
MD5

edaaaa6527a6f42c96f27ce2e427cd39
SHA1

0a19faa00081cf79bebaf16bb83aa114d0a5d166
SHA256

ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f
SHA512

799d38539e59b1df07d93c71d42ced5fd7bfadd6598d13ff5cfebce3d62f3b327022c16ad74b2e329c60a323bb128384336ca86db5bdc3d1cb290f420632fa9f
SSDEEP

6144:5kl8N2FwUw+h8MYiN8FHiYTDAcZuEao4lpzN+f7BpIfjfZSWYr7p:elPCUD2V3PAUabB+LMoWG7

Score

8^/10

persistence

Malware Config

Signatures

Executes dropped EXE 1 IoCs

Processes:

alter.exe

pid process

3708 alter.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

alter.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	alter.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\ = "C:\\Users\\Admin\\AppData\\Local\\alter.exe"	alter.exe

Drops file in System32 directory 2 IoCs

Processes:

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\whr458da.db
File opened for modification	C:\Windows\system32\config\systemprofile\AppData\Local\whr458da.db

Drops file in Windows directory 2 IoCs

Processes:

ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exealter.exe

description	ioc	process
File opened for modification	C:\Windows\ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.INI	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
File opened for modification	C:\Windows\alter.INI	alter.exe

Modifies data under HKEY_USERS 8 IoCs

Processes:

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

alter.exe

pid	process
3708	alter.exe
3708	alter.exe
3708	alter.exe
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Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

alter.exe

pid process

3708 alter.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

alter.exe

description pid process

Token: SeDebugPrivilege 3708 alter.exe
Token: SeDebugPrivilege 780

description	pid	process
Token: SeDebugPrivilege	3708	alter.exe
Token: SeDebugPrivilege	780

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exealter.exe

pid	process
4400	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
4400	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
3708	alter.exe
3708	alter.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe

description	pid	process	target process
PID 4400 wrote to memory of 3708	4400	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe	alter.exe
PID 4400 wrote to memory of 3708	4400	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe	alter.exe
PID 4400 wrote to memory of 3708	4400	ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe	alter.exe
PID 780 wrote to memory of 1744	780		wmiprvse.exe
PID 780 wrote to memory of 1744	780		wmiprvse.exe

C:\Users\Admin\AppData\Local\Temp\ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
"C:\Users\Admin\AppData\Local\Temp\ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4400
- C:\Users\Admin\AppData\Local\alter.exe
  C:\Users\Admin\AppData\Local\Temp\ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3708

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe -secured -Embedding
1⤵
PID:1744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\alter.exe

Filesize
378KB

MD5
edaaaa6527a6f42c96f27ce2e427cd39

SHA1
0a19faa00081cf79bebaf16bb83aa114d0a5d166

SHA256
ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f

SHA512
799d38539e59b1df07d93c71d42ced5fd7bfadd6598d13ff5cfebce3d62f3b327022c16ad74b2e329c60a323bb128384336ca86db5bdc3d1cb290f420632fa9f

Download Submit
C:\Users\Admin\AppData\Local\alter.exe

Filesize
378KB

MD5
edaaaa6527a6f42c96f27ce2e427cd39

SHA1
0a19faa00081cf79bebaf16bb83aa114d0a5d166

SHA256
ef159da6f5e731940edd84ad972cb11b38d6d1933edb0531b6f788de8353005f

SHA512
799d38539e59b1df07d93c71d42ced5fd7bfadd6598d13ff5cfebce3d62f3b327022c16ad74b2e329c60a323bb128384336ca86db5bdc3d1cb290f420632fa9f

Download Submit
memory/780-141-0x000001685E1C0000-0x000001685E1ED000-memory.dmp

Filesize
180KB

Download
memory/780-142-0x000001685E640000-0x000001685E673000-memory.dmp

Filesize
204KB

Download
memory/1744-144-0x0000000000000000-mapping.dmp

Download
memory/3708-134-0x0000000000000000-mapping.dmp

Download
memory/3708-140-0x0000000000400000-0x0000000000462000-memory.dmp

Filesize
392KB

Download
memory/3708-143-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4400-132-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4400-137-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads